Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xorg (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1529154
Title:
Brightness control does not work
Status in xorg package in Ubuntu:
Confirmed
Bug description:
The brightness level of the screen does not change, despite of using
the control brightness keys in the keyboard, or the control in
"Brightness & Lock" in the "System Settings".
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.19.0-42.48~14.04.1-generic 3.19.8-ckt10
Uname: Linux 3.19.0-42-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Thu Dec 24 15:25:11 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:3903]
InstallationDate: Installed on 2015-12-24 (0 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: LENOVO IdeaPad U310
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-42-generic
root=UUID=04718e80-4365-408d-a771-8af3458df9cb ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/04/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 65CN89WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lenovo
dmi.board.vendor: LENOVO
dmi.board.version: 31900004WIN8 STD SGL
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo U310
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr65CN89WW:bd09/04/2012:svnLENOVO:pnIdeaPadU310:pvrLenovoU310:rvnLENOVO:rnLenovo:rvr31900004WIN8STDSGL:cvnLENOVO:ct10:cvrLenovoU310:
dmi.product.name: IdeaPad U310
dmi.product.version: Lenovo U310
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri N/A
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Thu Dec 24 15:21:58 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 4140
vendor AUO
xserver.version: 2:1.17.1-0ubuntu3~trusty1
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